Mud jack sleeve for highways and the like



July 9, 1935. E, H, PETERS, 2,007,457

MUD J-ACK SLEEVE FOR HIGHWAYS AND THE LIKE Filed Nov. 29, 1933 @Sheets-Sheet l f if" .f imm? 13 v Jly 9, 1935. I E, H, PETERS 2,007,457

MUD JACK SLEEVE lFOR HIGHWAYS AND THE LIKE Filed Nov. 29, 1933 3 Sheets--SheerI 2 l @@hmwg@ July 9, y1935.

E.-H.PETERS MUD JACK SLEEVE FOR HIGHWAYS AND THE LIKE Filed Nov. 29, 1935 5 sheets-sheet 3 Patented Julyl 9, 193s ii; UNITED?! MUD JACK! SLEEVE FoltfHIGHWA-Ys "AN 4 "THE LIKEjI-f Y f *Edward Hr etersyChicago, Ill., assigner to James Jacobson, Chicagmlll.

`Appiiration November 29,123.23, serial No. 790,218V

, '1o was@ C1-f S4-el* 'rneinvention relates' te a thimtle or sleeve' [adapted to be embedded in concrete orotherfi'a- ,renal of which roadways, Vwalk-s and the like are' Vportion thereof become dislocated 'relatively to.

the plane of the road. y Y Y (Other objects of the invention areto provide Va structure capable of .forr'r'iingfapermanent-part of the roadway; `'a VstructureV which `will-'wit-h- `stand road loadv and the'fo'rces of nature as applied thereto;` and; in addition,l will provide a' convenient means 'through which vto Ainspect the subgrade; and, will further -providenieans whereby the labor necessary in order to make such an yinspection is materially` reduced.

.A furtherobject of the invention is to provide v.a construction which will prevent loosening "of vthe sleeve when cast into the roadway, to further resist the pulsating action as applied thereto by the pump during the introduction of. the ,ller to the subgrade; 'and,'in addition, vtowvthstand the resultant back-pressures as developed or as applied to said device. l

Itis still a further object Vof this invention to provide a sleeve which isof a length corresponde ing approximately tothe thickness of the 'roadway at thepoint of application ofthe sleeve lto the roadway, which sleeve is adapted to be supported in a `pre-determined position upon the subgraclewhereby duringthe pouring operationv 'itbeoornes properly embeddediin the material of the roadway, Vand thus provides a passage `which munication with the subgrade.

It is also an object to provide a structure which isvof` a length substantially equal'to lthe thickness ofv the roadway and whioh'issecurely'east `into the roadway and retained against relative displacement to the roadway, which in addition is provided with a closure which may be manipulated to permit inspection of the subgrade through the passage formedb'y thevsleeve. The closure is employed to assist in` sealing thersleeve `against the introduction oi.l water tothe submodin'eclstructure: f

in the subgrade. t

yanother voloieet 'of ,thel invention is to Aprovide 'one end of the sleeve with means whereby a hose endthose nozzle, 'or other similar element may jbe separably connected with vthe sleeve.

In'adclition, itis an object to provide closures 'forth-e opposite `ends, of said sleeve to thusre- Vspecht/ely prevent the inltration of water, dirt,

or loe through one end of the sleeve,'and.in acldition prevent the surging of the filler from the -subgrade into the interior of the sleeve, and provide meansfor removing excess Arriu'el from the interior ofthe sleeve to maintain it in a condi-- .tion facilitating Vinspection of the subgrade.. The invention has these andother objects, all

siwhien will: be explained in detail and more readily. understood when read in conjunction with 'accompanying drawings:r which `show various Vvstructureswhiitlfi may' be resorted to; it being,

therefore, obvious that changes and modifications mayv 'he made without departing from fthe spirit of the. appended claims forming a part nefeofpf4 Y' l, In the drawings, Figure 1 .isa plan view of' the fragmentary portion of a sidewalk orroadway;

2 .is aflse'otional view of a fragment-of a Vrtiadway showing the `devise as applied thereto and having a hose connected therewith whereby :mudor sorneuother filler is kintroduced to a void below tnepavement; t f

. "Fig is a sectional viewer the sleeve shown in Piggy y Fig; 4 isfa fragmentary sectional vie'wvrof a- Fig, Slis Aa plan View of a fragment of a roadway snowing'a' top view of the sleeve shown in FigpSV Y- 1 Fig-Gis1 a sectionalv view of a sleeve showing Aanother' arrangement which may be resorted to lprior tov pouring of the roadway or pavement; v

Aextends through the pavement to establish con* 1" Fig. 7 kis a sectional view of thestructure shown in Fig. 6 illustrating a closure employed with the structlire;' f

-. rig.. s is a sectional view taken on line a-s of grade, and thas prevent the developni'erit of a void ing theapplication of a hose nozzle tothe sleeve;

. 1 Fig. 71C'` is a detail side elevationof the closure shown on Fig. 7; i -Fig. 11 is a side view of the structure shown in Figli); i Y

Fig. 13 is a plan view of the structure shown in Fig. 10;

Fig. 14 is a sectional view of the upper end of the sleeve shown in Figs. 6 and 7;

Fig. 15 is a side elevation vof the upper end of the sleeve shown in Figs. 6, '7, 9 and 14;

Fig. 16 is a fragmentary sectional view of the lower end of the sleeve showing same provided with a support for the sleeve, the support having means for the reception of stakes for holding the sleeve in position on the subgrade prior to4 pouring of the roadway; and

Fig. 17 is a fragmentary sectional view of a modified sealing means which may be employed in the structure.

The embodiment of the invention illustrated in Figs. 1 to 4 contemplates the provision of a tubular element or sleeve I0, which is embedded in the concrete forming the roadway I I it being understood that the sleeve is supported by the subgrade I2 prior to pouring of vthe pavement; the sleeves being located at those points of the subgrade at -which a void is liable to occur. 'I'he tubular element or sleeve IB is formed with an enlargement I3 at its upper end, to thus form` an outwardly extending shoulder I4, and an enlargement for the reception of the end of the nozzle secured to the hose I5, through which mud or some other suitable filler I6 is pumped to and through the sleeve, and thence to the void below the pavement.

The sleeve I0 is further provided with an externally arranged annular rib or extension I1, which also becomes embedded in the concrete of the roadway during the pouring operation and forms means to resist the loosening of the sleeve due to shrinkage of the concrete upon its initial set, and resist the force of the pulsating action produced by the operation of the pump whereby mud or illler I6 is forced under pressure into the void.

The pressure under which the material is fed to the void may in ksome instances be sufficient to cause a vibratory action to be applied to the sleeve which would tend to cause its becoming loosened from the concrete, but this difficulty is overcome by means of the annular rib and may be further insured against by means of a structure hereinafter to be referred to.

lshown in Fig. 3 as the sleeve may be supported in a manner other than thatcontemplated by this structure. f

The enlargement I3 of the sleeve'is formed to receive the closure I9, which, in the embodiment of the invention illustrated in Fig. 3, is merely a plug which rests upon the internal shoulder 20,

*and will thus accept and transmit any load a'pof any suitable resilient material, either metal,

plied to the closure I9, to the shoulder Il, and thence to the roadway. f

The upper end of the `sleeve shown' in Fig. '4 substantially corresponds to the upper end. of the sleeve shown in Fig. 3, however, differs therefrom in'that the internal portion of 'the 'upper lend of the sleeve is threaded, as indicated at `2I, to receive thethreadedplug or 'closure 22. AThese threads may also be employed to connectthe threaded end of a hose or hose coupling with the sleeve to thereby hold the hose against displacement during the pumping of the ller into the void.

In Figure 6 another structure for supporting the -sleeve is illustrated. This structure contemplates the utilization of a tool having a shank or spindle 23 which is pointed at its lower end and has its upper end provided with a head 24, the head also including a reduced portion 25 which respectively cooperate with the recesses 26 rand the internal surface of the tubular portion 2l,

extending, below the recesses. An apertured disc v26 is mounted on the spindle or shank 23 and is adjustable along the spindle to thus compensate for different lengths of sleeves.

A set screw 29 is employed to secure the disc 28 at various positions longitudinally of spindle 23. It is understood that the disc 28 is employed to support the lower end of the sleeve against lat- .eral displacement and that this structure and the head 24 and portion 25 provides a construction which willsupport the rsleeve in a vertical position during the pouring operation and which may be withdrawn from the sleeve after the concrete has set.

The sleeve illustrated in Figures 6 and '7 is generally designated I 0A and is provided with an annularly arranged flange 30 which functions in a manner similar to the flange I'I.v The sleeve I 0A is further provided with a plurality of longitudinally extending ribs 3 I 3I which function to prevent rotation of the sleeve relative to the pavement.

By referring to Figures 8 and 14, it will be noted that the upper end of the sleeve IOA is provided with a plurality 'of bayonet slots 32-32 which function to removably lock the closure generally designated 33 within the sleeve.

The closure generally designated 33 is designed to provide a closure 34 for the upper end of the sleeve and the closure 35 for the lower end thereof, the closures being connected with each other through the agency of a webbed shank 36 which thus provides a unitary structure which may be l removably associated with the sleeve. The closure generally designated 33 is formed to provide the transversely arranged rib 31, the opposite ends of which terminate in projections or lugs 38-38 which respectively cooperate with the bayonet slots 32 to rotatably and releasably lock the closure generally designated 33, relatively to the sleeve, and in addition function to assist in insuring a proper seal to be effected between the closure and the top of the tubular member. The closure structure 33 is also designed to provide an annular shoulder 39, which is of a lesser diameter than closure 34 and thus provides a space for the reception of a washer or gasket 40. The shoulder 39 is adapted to engage the annular shoulder II of the sleeve and thus any road shock delivered to the closure 34 will be transmitted through the washer 40 to the shoulder of the sleeve. i

It may be here stated that the washer may be rubber, or fibre, which may be 'compressed to form a water-tight seal. It will be noted that the bayonet slots 32 are slightly inclined so as to provide a cam action to thereby lock the closure .with the sleeve upon rotation of the closure and compress the seal or washer 4U. Each of these bayonet slots is provided with a recess 42 for the reception ofthe repective lugs 38, which lenter user may be apprised ofthe direction of rotation in order Lto cause release or locking .ofzthelclosure with the sleeve. The closure is provided with an opening 43 for the reception of a suitable toolzfor accomplishing rotation of theV closure. j A .It may be here stated that the bayonet slots 132 perform dual function inv that they provide means .for releasably lookingythe closureto the tubular member and in additionprovide means for releasably locking Ya hose nozzle generally designated v44 with the sleeve when itis desired to introducea ller to a void. s l

The nozzleM is provided with lugs 45, which are introduced through the throat. of the bayonet slots rand-upon rotation ofthe nozzle will thus secure againstv accidental separation of the latter from the sleeve. It has been found that considerable pressure is exerted upon the sleeve and lthenozzle during the pumping of the iiller to the void, which tends to loosenv the sleeve from the i pavement. This last mentionedobjection is obviatedby means' of the annular rib 3D and the .vertical ribs 3l.. I i i It is also understood that the sleeve 30 may be of a length .approximately equal tothe'thicknessV of the roadway and willthus Adiffer from the struc- `ture shown in Figf, `which is a slightly greater length.

l `The sleeve 3u `may be provided with a base orfoot piece M5 which is of a sufficient'diameter` to -support the sleeve in 'a vvertical position relatively to the subgrade. This. base `may be provided withfmeans for the reception of `stakes 4l or otherholding means which aredriven into the subgrade through openings d8 provided in the base to thus hold the sleeve against `displacement during lthe pouring ofthe roadway or pavement. Fig. 1'7 illustrates a modified seal which may be `employed at the juncture at closure 34 and the 'shoulder M. This seal 4S may be of a tubular' or circular :cross section and will provide greater resiliency tothe seal.v s

From the foregoing description ofwthe invention, it is believed evident that a sleeve is provided which may be successfully supported by they 'subgrade during the pouring of the pavement or roadway and whichv has means for-'locking the sleeve in the roadway in a manner to prevent displacementv thereof relatively thereto and thus `corrir'vensate for the shrinkage of the material of the roadway or the occurrence of rust, either of which contingencies might cause the sleeve toebecomeloosenedso -that it may be rem'oved from the pavement. .v

It is further manifest that the structure provides means for sealing the opposite ends of the sleeve to thus respectively prevent the ller from surging from the void into the sleeve and the passage of water, etc. fromthe exterior of the roadway throughV the sleeve should the sleeve be located at the base of a hill or some other hollow where Wateris liable to congregate and temporarily lodge during a rain or thaw of a snowfall. This insures against the introduction of water to the subgrade which might initiate the formation of .a void in the subgrade.

It is also believed evident that means are provided whereby a hose end or a hose nozzle may be separably locked to the sleeve to thus eliminate the necessity o1" manually holding the hose during theintroduction of the filler to a void.

sectionv of the road. r

It is also believed manifest from the foregoing that the structure eliminates much of the manual llabor now necessary in order to introduce'filler to a void which introduction is now accomplished vby drilling a hole through the pavement and after f;

filling the void plugging the hole with pitch,A tar, etc. `which has to be removed from the passage should it be found that additional filler material is necessary in order to ll the void and produce a substantial vsupport for an adjacent slab The closure35 performs the additional function of providing means forv expelling excess mud from the interior of the sleeve which thereby maintains the interior of the sleeve free of excess mud and in a condition which facilitates inspection of the subgrade through the thimble or sleeve.

Having lthus described the invention, what I claim and desire to cover by Letters Patent isz- 1.. A device of the kind described comprised of a tubular rnember'one end of which provides a support whereby said tubular member may be supported by the subgrade of a 'roadway during pouring of pavement for said roadway to thereby embedsaid tubular member in said pavement, said tubular member being of a length approximately equal to thethickness of said pavement at application of said-tubular member to the roadway and providing a passage for accomplishing communication' with a portionadjacent the upper surface of the subgrade, a closure for the upper end of said tubular member having means for releasably locking said closure to Vsaid end of said tubular member, and a closure for the lower end of said tubular member" connected with said iirst mentioned closure. '2. A device of the kind described Ycomprised of va tubular member one endof which provides a support whereby said tubular member may be supported by the subgrade of a roadway r during pouring of pavement for said roadway to thereby embed said tubular member in said pavement, said tubular member being of a length approximately equal to the thickness of said pavement at application of said tubular member toi the roadwayv and providing a passage for accomplishing communication with a'portion adjacent the upper portion ofxthe subgrade, a closure for the upperI end of said 'tubular member having means for separably connecting said closure with said tubular. member,v and a. closure forthe lower jend of saidtubular member connected with the closure for the upper end of said tubular member, said closures being adapted to be inserted and withdrawn from said tubular member through the upperv end of said tubular member. 3. A device of the kind described comprised of a tubular member one end of which provides a support whereby said tubular member may be supported by the subgrade of a roadway' during pouring of pavement for said roadway to thereby embed said tubular member in said pavement, said tubular member being of a length approximately equal to the thickness of said pavement at application of said tubular member to the roadway and providing a passage for accomplishing a communication with a portion of the subgrade adjacent the upper portion of the subgrade, a member the opposite ends of which respectively provide closures for the opposite ends of said tubular member, and means for releasably locking said closures with respect to said tubular member. y

4. A device of the kind described comprised of a tubular member' one end of which provides a support whereby said tubular member' may be supported by the subgrade of a roadway during pouring of pavement for said roadway to thereby embed said tubular member in said pavement, said tubular member being of a length approximately equal to the thickness of said pavement at application of said tubular member to the roadway and providing a passage for accomplishing a Acommunication with a portion of the subgrade adjacent the upper surface of the subgrade, a member, the opposite ends of which respectively provide closures for the opposite ends of said tubular member, said closure for the upper end of said tubular member and said tubular member having elements which cooperate with each other to releasably lock said closuresy with respect to said tubular member.

5. A device of the kind described comprised of a tubular member one end of which provides a support whereby said tubular member may be supported by the subgrade of a roadway during pouring of the pavement for said roadway to thereby imbed said tubular member in said pavement, said tubular member being of a length approximately equal to the thickness of said pavement at application of said tubular member to the roadway and providing a passage for accomplishing communication with a portion adjacent the upper surface of the subgrade, a closure removably associated with the upper end of said tubular member, means sealing the tubular member against the passage of water, through said member, said closure and tubular member having means cooperating with each other to releasably connect said closure and tubular member and effect said seal, said sealing means being located above said means for connecting said closure and tubular member. Y

6. A device of the kind described comprised of a tubular member one end of which provides a support whereby said tubular member may be supported by the subgrade of a roadway during pouring of the pavement for said roadway to thereby imbed said tubular member in said pavement, said tubular member being of a length approximately equal to the thickness of said pavement at application of said tubular member to the roadway and providing a passage for accomplishing communication with a portion adjacent the upper surface of the subgrade, a closure removably associated with the upper end of said tubular member, a member extending' from said closure into said tubular member, to adjacent the opposite end of said tubular member and providing a closure for said last mentioned end of said tubular member and means provided between said closures providing an element of means for releasably locking said closures to said tubular member. z 7. A device adapted to be imbedded in a pavement and provide for communication with the upper surface of vthe subgrade of said pavement, said device being comprised of a tubular member of a length substantially equal to the thickness of the pavement and having an enlargement providing an internal and external shoulder, the internal shoulder providing a seat limiting movement in one direction' of a closure for said tubular member, said tubular member having an element of means for effecting a. separable connection between said tubular element and closure.

8. For facilitating the pumping of filling material under the surface material of a highway, street, or the like, where filling below said` surface material has been washed away or has sunken, or where the surface material has raised and it is desirable to fill the existing void, a pavement having anchored therein as a permanent part thereof a tubular member which passes through the pavement, and a member adapted to be removably mounted in said tubular member, said second mentioned member including a closure for the upper end of said tubular member having a plunger connected with the closure and having a part at its lower end closing the lower end of the tubular member and said part acting to force any material in the tubular member therefrom when the closure and plunger are arranged in the tubular member.

9. Adevice of the class described comprising a sleeve and a closure member therefor, said sleeve having an internal shoulder at its upper end, a closure member being removably mounted in said sleeve, said closure member being seated on the shoulder and having its upper face flush with the upper end of the sleeve, said sleeve and closure member each being provided with an element of a lock for releasably locking the closure to the sleeve, a plunger connected with the closure and extending through the sleeve with its lower end closing the lower end of the sleeve when the closure is in position in said sleeve.

10. A device of the class described comprising a sleeve having an internal shoulder at its upper end, a removable closure member adapted to be removably mounted in said sleeve and be seated on the shoulder and having its upper face flush with the upper end of the sleeve, a plunger connected with the closure and extending through the sleeve with its lower end closing the lower end or said sleeve when the closure is in position, means for holding the closure in closing position, said means including elements provided in the sleeve extending downward from the shoulder and means provided on the closure which cooperate with the elements of the sleeve, to separably lock the closure to said sleeve upon rotation of said closure.

EDWARD H. PETERS. 

